Control both inductive and resistive loads in environments such as industrial settings using TPD2017FN and STM32L496AG

Low-side switch (8-channels) for motors, solenoids, lamp drives

IPD Click -2017 with Discovery kit with STM32L496AG MCU

Published Jul 22, 2025

Click board™

IPD Click -2017

Dev. board

Discovery kit with STM32L496AG MCU

Compiler

NECTO Studio

MCU

STM32L496AG

Enhance automation in industrial environments and applications that need managing resistive and inductive loads up to 50mH, featuring a current capability of 0.5A for each channel

Hardware Overview

How does it work?

IPD Click - 2017 is based on the TPD2017FN, an 8-channel low-side switch featuring MOSFET outputs from Toshiba Semiconductor, designed to be directly driven by CMOS and TTL logic circuitry. It's ideally suited for driving inductive and resistive loads, such as industrial programmable logic controllers for industrial use, motors, relays, lamps in factory automation equipment, and more. A key advantage of the TPD2017FN is its built-in overcurrent and overtemperature protection, enhancing system stability by safeguarding against excessive heat and current. Equipped with the capability to handle back electromotive force from inductive loads without surpassing the component's voltage tolerance, the TPD2017FN is optimized for loads up to 50mH with a current capacity of 0.5A per channel, supported by an external power supply ranging from 8-24V. The channels can be

operated in parallel to increase the current capability of the outputs. As mentioned, this Click board™ incorporates comprehensive protection mechanisms, including overtemperature protection that deactivates all outputs (OUT1-OUT8) if the temperature exceeds 175°C and overcurrent protection that limits voltage and current during load shorts, ensuring the device and its connected peripheral safety. Designed for straightforward integration with CMOS and TTL systems, the IPD Click features input control terminals for each output channel, allowing independent channel control. Inputs IN1 to IN4 interface directly via the mikroBUS™ socket, with additional inputs IN5 to IN8 accessible through an unpopulated header. Each input control pin of the TPD2017FN is equipped with a built-in 300kΩ pull-down resistor to maintain a LOW logic state in an open state. This

Click board™ comes with optional inductive load decoupling diodes unpopulated by default, the CRS20140A from Toshiba Semiconductor, allowing users to add them in the case of higher inductive loads. Also, it is equipped with jumpers for the diode configuration of the used load switch and its power management. These jumpers are pre-configured, enabling immediate use without the need for any adjustments. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.

Features overview

Development board

The 32L496GDISCOVERY Discovery kit serves as a comprehensive demonstration and development platform for the STM32L496AG microcontroller, featuring an Arm® Cortex®-M4 core. Designed for applications that demand a balance of high performance, advanced graphics, and ultra-low power consumption, this kit enables seamless prototyping for a wide range of embedded solutions. With its innovative energy-efficient

architecture, the STM32L496AG integrates extended RAM and the Chrom-ART Accelerator, enhancing graphics performance while maintaining low power consumption. This makes the kit particularly well-suited for applications involving audio processing, graphical user interfaces, and real-time data acquisition, where energy efficiency is a key requirement. For ease of development, the board includes an onboard ST-LINK/V2-1

debugger/programmer, providing a seamless out-of-the-box experience for loading, debugging, and testing applications without requiring additional hardware. The combination of low power features, enhanced memory capabilities, and built-in debugging tools makes the 32L496GDISCOVERY kit an ideal choice for prototyping advanced embedded systems with state-of-the-art energy efficiency.

Discovery kit with STM32L496AG MCU double side image

Microcontroller Overview

MCU Card / MCU

Architecture

ARM Cortex-M4

MCU Memory (KB)

1024

Silicon Vendor

STMicroelectronics

Pin count

169

RAM (Bytes)

327680

Used MCU Pins

mikroBUS™ mapper

Load 1 Control

PA4

Load 2 Control

PB2

RST

ID COMM

PG11

SCK

MISO

MOSI

Power Supply

3.3V

Ground

GND

Load 3 Control

PA0

PWM

Load 4 Control

PH2

INT

SCL

SDA

Power Supply

Ground

GND

Take a closer look

Click board™ Schematic

Step by step

Project assembly

Discovery kit with STM32H750XB MCU front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Discovery kit with STM32L496AG MCU as your development board.

Thermo 21 Click front image hardware assembly

Thermo 21 Click complete accessories setup image hardware assembly

Board mapper by product7 hardware assembly

Discovery kit with STM32H750XB MCU NECTO MCU Selection Step hardware assembly

Necto No Display image step 8 hardware assembly

Track your results in real time

Application Output

1. Application Output - In Debug mode, the 'Application Output' window enables real-time data monitoring, offering direct insight into execution results. Ensure proper data display by configuring the environment correctly using the provided tutorial.

2. UART Terminal - Use the UART Terminal to monitor data transmission via a USB to UART converter, allowing direct communication between the Click board™ and your development system. Configure the baud rate and other serial settings according to your project's requirements to ensure proper functionality. For step-by-step setup instructions, refer to the provided tutorial.

3. Plot Output - The Plot feature offers a powerful way to visualize real-time sensor data, enabling trend analysis, debugging, and comparison of multiple data points. To set it up correctly, follow the provided tutorial, which includes a step-by-step example of using the Plot feature to display Click board™ readings. To use the Plot feature in your code, use the function: plot(*insert_graph_name*, variable_name);. This is a general format, and it is up to the user to replace 'insert_graph_name' with the actual graph name and 'variable_name' with the parameter to be displayed.

Software Support

Library Description

This library contains API for IPD Click -2017 driver.

Key functions:

ipd2017_all_pins_set - IPD 2017 pin setting function
ipd2017_set_out_level - IPD 2017 set output level function
ipd2017_get_out_state - IPD 2017 get output level function

Open Source

Code example

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

/*!
 * @file main.c
 * @brief IPD 2017 Click Example.
 *
 * # Description
 * This example demonstrates the use of IPD 2017 Click board by toggling the output state.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initializes the driver and logger.
 *
 * ## Application Task
 * Switches on all output pins state for 2 seconds, then switches them off, and turns them on one by one.
 *
 * @author Stefan Ilic
 *
 */

#include "board.h"
#include "log.h"
#include "ipd2017.h"

static ipd2017_t ipd2017;   /**< IPD 2017 Click driver object. */
static log_t logger;    /**< Logger object. */

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    ipd2017_cfg_t ipd2017_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    ipd2017_cfg_setup( &ipd2017_cfg );
    IPD2017_MAP_MIKROBUS( ipd2017_cfg, MIKROBUS_1 );
    if ( DIGITAL_OUT_UNSUPPORTED_PIN == ipd2017_init( &ipd2017, &ipd2017_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

void application_task ( void ) 
{
    log_printf( &logger, " Turning OUT 1 to OUT 4 HIGH \r\n" );
    ipd2017_all_pins_set( &ipd2017 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf( &logger, " Turning OUT 1 to OUT 4 LOW \r\n" );
    ipd2017_all_pins_clear( &ipd2017 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf( &logger, " Turning OUT 1 to OUT 4 one by one \r\n" );
    uint8_t out_sel = IPD2017_OUT1_PIN_MASK;
    do
    {
        ipd2017_set_out_level( &ipd2017, out_sel, IPD2017_PIN_STATE_HIGH );
        Delay_ms ( 1000 ); 
        Delay_ms ( 1000 );
        ipd2017_set_out_level( &ipd2017, out_sel, IPD2017_PIN_STATE_LOW );
        out_sel <<=  1;
    }
    while ( out_sel <= IPD2017_OUT4_PIN_MASK );
    
}

int main ( void ) 
{
    /* Do not remove this line or clock might not be set correctly. */
    #ifdef PREINIT_SUPPORTED
    preinit();
    #endif
    
    application_init( );
    
    for ( ; ; ) 
    {
        application_task( );
    }

    return 0;
}

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